1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
require 'zlib'
require 'json'
module Gitlab
module Ci
module Build
module Artifacts
class Metadata
VERSION_PATTERN = '[\w\s]+(\d+\.\d+\.\d+)'
attr_reader :file, :path, :full_version
def initialize(file, path)
@file = file
@path = path.force_encoding('ASCII-8BIT')
@full_version = read_version
end
def version
@full_version.match(/#{VERSION_PATTERN}/).captures.first
end
def errors
gzip do |gz|
read_string(gz) # version
errors = read_string(gz)
raise StandardError, 'Errors field not found!' unless errors
JSON.parse(errors)
end
end
def match!
gzip do |gz|
2.times { read_string(gz) } # version and errors fields
match_entries(gz)
end
end
def to_path
Path.new(@path.dup.force_encoding('UTF-8'), *match!)
end
private
def match_entries(gz)
paths, metadata = [], []
match_pattern = %r{^#{Regexp.escape(@path)}[^/]*/?$}
invalid_pattern = %r{(^\.?\.?/)|(/\.?\.?/)}
until gz.eof? do
begin
path = read_string(gz)
meta = read_string(gz)
next unless path =~ match_pattern
next unless path.force_encoding('UTF-8').valid_encoding?
next if path =~ invalid_pattern
paths.push(path)
metadata.push(JSON.parse(meta, symbolize_names: true))
rescue JSON::ParserError, Encoding::CompatibilityError
next
end
end
[paths, metadata]
end
def read_version
gzip do |gz|
version_string = read_string(gz)
unless version_string
raise StandardError, 'Artifacts metadata file empty!'
end
unless version_string =~ /^#{VERSION_PATTERN}/
raise StandardError, 'Invalid version!'
end
version_string.chomp
end
end
def read_uint32(gz)
binary = gz.read(4)
binary.unpack('L>')[0] if binary
end
def read_string(gz)
string_size = read_uint32(gz)
return nil unless string_size
gz.read(string_size)
end
def gzip
open do |file|
gzip = Zlib::GzipReader.new(file)
begin
yield gzip
ensure
gzip.close
end
end
end
def open
File.open(@file) { |file| yield file }
end
end
end
end
end
end
|
